W2IHY 8 band equalizer and EQ Plus

[Joe Subich, W4TV-4]

Lyle,

 > The K3 Mic algorithm applies a fast attack, slow decay gain control
 > loop after the Tx Equalizer.  The peak detector in this loop is
 > displayed on the ALC bargraph.

Does this gain control occur before or after the compressor if it
is engaged?

 > "Fast" and "slow" are relative terms, and not user adjustable.
 > Consider them part of the rig's personality...

If the gain control is prior to the compressor, a fast decay might
be more appropriate and reduce the "punch out" effect.

73,

    ... Joe, W4TV


On 4/30/2010 8:57 AM, Lyle Johnson wrote:

>
>> The terms you are using to describe the K3's internal functioning will
>> remain speculative unless Wayne publishes stuff,...
>
> The K3 Mic algorithm applies a fast attack, slow decay gain control loop
> after the Tx Equalizer.  The peak detector in this loop is displayed on
> the ALC bargraph. The fifth bar indicates the threshold beyond which the
> loop reduces gain.  Currently, the 6th bar shows about 3 dB of loop gain
> reduction and the 7th bar's threshold is about 6 dB of loop gain reduction.
>
> "Fast" and "slow" are relative terms, and not user adjustable. Consider
> them part of the rig's personality...
>
> 73,
>
> Lyle KK7P
>

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[KK7P]

>  > The K3 Mic algorithm applies a fast attack, slow decay gain control
>  > loop after the Tx Equalizer.  The peak detector in this loop is
>  > displayed on the ALC bargraph.
>
> Does this gain control occur before or after the compressor if it
> is engaged?
Before.

Lyle KK7P
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[Joe Subich, W4TV-4]

 >> Does this gain control occur before or after the compressor if it
 >> is engaged?
 >
 > Before.

Might be more appropriate for a long decay gain control loop to
FOLLOW the compressor (clipper).  IIRC, that is the order in most
broadcast (talk formatted) use ... the clipper prevents unusual
peaks from causing distortion and the longer recovery compressor
smooths out the level (rides gain).

73,

    ... Joe, W4TV

On 4/30/2010 1:25 PM, Lyle Johnson wrote:

>
>> > The K3 Mic algorithm applies a fast attack, slow decay gain control
>> > loop after the Tx Equalizer. The peak detector in this loop is
>> > displayed on the ALC bargraph.
>>
>> Does this gain control occur before or after the compressor if it
>> is engaged?
> Before.
>
> Lyle KK7P
>

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[KK7P]

> >> Does this gain control occur before or after the compressor if it
> >> is engaged?
> >
> > Before.
>
> Might be more appropriate for a long decay gain control loop to
> FOLLOW the compressor (clipper).

That loop is handled by the ALC circuitry/logic in the K3.

The K3's Tx gain system in voice modes is the mic gain loop I described,
then the clipper if engaged by the operator, then the power control/ALC
loop.

73,

Lyle KK7P
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[Guy, K2AV]

Sounds sweet to me, even if it is just number soup. As some have said,
try it, you might like it.

 73, Guy.

On Fri, Apr 30, 2010 at 1:50 PM, Lyle Johnson <[hidden email]> wrote:

>
>> >> Does this gain control occur before or after the compressor if it
>> >> is engaged?
>> >
>> > Before.
>>
>> Might be more appropriate for a long decay gain control loop to
>> FOLLOW the compressor (clipper).
>
> That loop is handled by the ALC circuitry/logic in the K3.
>
> The K3's Tx gain system in voice modes is the mic gain loop I described,
> then the clipper if engaged by the operator, then the power control/ALC
> loop.
>
> 73,
>
> Lyle KK7P
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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